[time-nuts] Re: Help needed with a UPS for my GPSDO

[Larry McDavid]

I have two APC "SmartUPS"  1500 units. Each has two 6 volt gel cell 
batteries connected in series. I buy replacement battery packs, 
pre-wired with the series wire and mating connector on eBay.

Best wishes,

Larry McDavid W6FUB
Anaheim, California (SE of Los Angeles, near Disneyland)

On 6/26/2023 11:03 AM, Dave via time-nuts wrote:
> Hi, I managed to find two second hand UPS at a ham rally but neither had 
> a battery pack in it
> 
> One, an "APC backups-ups 400"Â  works well with a single 12V 7Ah sealed 
> lead acid battery.
> 
> The other, an "APC SMART-UPS 600" seems to have space for two batteries.
> 
> I have found a manual for the "600" unit but it mentions nothing about 
> the number of batteries or if they should be connected in series or 
> parallel :-(
> 
> Has anyone any experience of these ??
> 
> Any help more than welcome.
> 
> Regards,
> Dave
> 
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